biology topic seven
0.0 / 5
- Created by: El17P
- Created on: 20-03-23 19:52
1. define habitat
2.define population
3.define community
4. define abiotic factors
5. define biotic factors
6.define ecosystem
2.define population
3.define community
4. define abiotic factors
5. define biotic factors
6.define ecosystem
1. the place where an organism lives
2.all the organisms of one species living in a habitat
3. the populations of different species living in a habitat
4. non living factors of the environment (temperature)
5. living factors of the environment (food)
6.
2.all the organisms of one species living in a habitat
3. the populations of different species living in a habitat
4. non living factors of the environment (temperature)
5. living factors of the environment (food)
6.
1 of 12
1.why do organisms compete for resources?
2.define interdependence
3.what are example of abiotic factors?
4.what are examples of biotic factors?
2.define interdependence
3.what are example of abiotic factors?
4.what are examples of biotic factors?
1. to survive and reproduce
2. when species depend on other species for food, shelter, pollination, seed dispersal etc
3. moisture level, light intensity, temperature, carbon dioxide, wind intensity and direction, oxygen level, soil PH and mineral content
2. when species depend on other species for food, shelter, pollination, seed dispersal etc
3. moisture level, light intensity, temperature, carbon dioxide, wind intensity and direction, oxygen level, soil PH and mineral content
2 of 12
1. what are the three types of adaptations?
2. what do food chains show?
3. what is the distribution of an organism?
4. what are two ways to study distribution?
2. what do food chains show?
3. what is the distribution of an organism?
4. what are two ways to study distribution?
1. structural (body shape or colour e.g blubber or camouflage), behaviuoral e.g migration, and functional e.g hibernation/conserving water.
2. whats eaten in an ecosystem
3. where an animal is found
4. using quadrats to : measure how common and organism
2. whats eaten in an ecosystem
3. where an animal is found
4. using quadrats to : measure how common and organism
3 of 12
5.what is a quadrat?
6. how are they used?
6. how are they used?
5. a square frame enclosing a known area
6. count all organisms within the quadrat and repeat. then work out the mean do this with a second area and compare.
6. count all organisms within the quadrat and repeat. then work out the mean do this with a second area and compare.
4 of 12
1. how do you find how plants are distributed?
2. what is the rate of decay affected by?
3.how is biogas made?
2. what is the rate of decay affected by?
3.how is biogas made?
1. by using transects: mark out a line using a tape measure, collect data along the line or use quadrats.
2. temperature, oxygen levels, water levels, number of decay organisms
3. by anaerobic decay of waste materials (methane)
2. temperature, oxygen levels, water levels, number of decay organisms
3. by anaerobic decay of waste materials (methane)
5 of 12
effect of temperature on the rate of decay:
1. measure out 5cm cubed of lipase solution into a test tube labelled 'l'
2. measure out 5cm cubed milk and add to a different test tube.
3. add 5 drops of phenolpthalein indicator to the milk.
1. measure out 5cm cubed of lipase solution into a test tube labelled 'l'
2. measure out 5cm cubed milk and add to a different test tube.
3. add 5 drops of phenolpthalein indicator to the milk.
4. measure out 7 cm3 of sodium carbonate solution to the same tube. this turns it into an alkaline turning pink
5. put both tubes into a 30 degree water bath and use a calibrated dropping pipette to put 1cm3 of the lipase solution to into the milk and sta
5. put both tubes into a 30 degree water bath and use a calibrated dropping pipette to put 1cm3 of the lipase solution to into the milk and sta
6 of 12
1.why is high biodiversity important?
2. what does carbon dioxide and methane do?
3.what does this do?
4.what issues does deforestation cause?
2. what does carbon dioxide and methane do?
3.what does this do?
4.what issues does deforestation cause?
1. it makes sure ecosystems are stable as species depend on each other for survival.
2. trap energy from the sun
3. increase the temperature (global warming)
5. less carbon dioxide taken in, more carbon dioxide in the atmosphere, less biodiversity
2. trap energy from the sun
3. increase the temperature (global warming)
5. less carbon dioxide taken in, more carbon dioxide in the atmosphere, less biodiversity
7 of 12
1. what can food chains be divided into?
2. what are trophic levels?
3. what does trophic level one contain?
4. what does trophic level two contain?
5. what does trophic level three contain?
6. what does trophic level four contain?
2. what are trophic levels?
3. what does trophic level one contain?
4. what does trophic level two contain?
5. what does trophic level three contain?
6. what does trophic level four contain?
1. trophic levels
2.different stages of a food chain that consist of one or more organisms that perform a specific role in the chain.
3. producers (organisms that make their own food)
4. primary consumers (herbivores)
5.secondary consumers (carnivores)
6.
2.different stages of a food chain that consist of one or more organisms that perform a specific role in the chain.
3. producers (organisms that make their own food)
4. primary consumers (herbivores)
5.secondary consumers (carnivores)
6.
8 of 12
1. what do pyramids of biomas show?
2. what is biomass?
3. how does this happen?
2. what is biomass?
3. how does this happen?
1. the relative mass of each trophic level and information about food chains
2. the loss between each trophic level
3.organisms dont always eat every part, they dont absorb all the things ingested, some biomass is converted to other substances
2. the loss between each trophic level
3.organisms dont always eat every part, they dont absorb all the things ingested, some biomass is converted to other substances
9 of 12
4. how do you calculate the efficiency of biomass?
5. what are factors effecting food security?
5. what are factors effecting food security?
4. efficiency = biomass transferred to next level/biomass available at the previous level x 100
5.increased population, new pests and pathogens affecting farming, input costs of farming, conflicts affecting availability of food and water.
5.increased population, new pests and pathogens affecting farming, input costs of farming, conflicts affecting availability of food and water.
10 of 12
1. how is mycroprotein made?
1. using modern technology to culture microorganisms under controlled conditions in large vats to be used as a food resource.
11 of 12
how is bacteria engineered to make human insulin
1.a plasmid is removed from a bacterium.
2.the insulin gene is cut out of a human chromosome using a restriction enzyme that recognizes specific sequences of DNA. the cut leaves a sticky end (one of the dna
1.a plasmid is removed from a bacterium.
2.the insulin gene is cut out of a human chromosome using a restriction enzyme that recognizes specific sequences of DNA. the cut leaves a sticky end (one of the dna
3.the plasmid is cut open leaving the same sticky ends and is mixed with the human insulin gene.
4. the enyme ligase is added with bonds the ends together. producing recombinant DNA
5. this is inserted into a bacterium
6. this is grown and produces insuli
4. the enyme ligase is added with bonds the ends together. producing recombinant DNA
5. this is inserted into a bacterium
6. this is grown and produces insuli
12 of 12
Other cards in this set
Card 2
Front
1.why do organisms compete for resources?
2.define interdependence
3.what are example of abiotic factors?
4.what are examples of biotic factors?
2.define interdependence
3.what are example of abiotic factors?
4.what are examples of biotic factors?
Back
1. to survive and reproduce
2. when species depend on other species for food, shelter, pollination, seed dispersal etc
3. moisture level, light intensity, temperature, carbon dioxide, wind intensity and direction, oxygen level, soil PH and mineral content
2. when species depend on other species for food, shelter, pollination, seed dispersal etc
3. moisture level, light intensity, temperature, carbon dioxide, wind intensity and direction, oxygen level, soil PH and mineral content
Card 3
Front
1. what are the three types of adaptations?
2. what do food chains show?
3. what is the distribution of an organism?
4. what are two ways to study distribution?
2. what do food chains show?
3. what is the distribution of an organism?
4. what are two ways to study distribution?
Back
Card 4
Front
5.what is a quadrat?
6. how are they used?
6. how are they used?
Back
Card 5
Front
1. how do you find how plants are distributed?
2. what is the rate of decay affected by?
3.how is biogas made?
2. what is the rate of decay affected by?
3.how is biogas made?
Back
Related discussions on The Student Room
Similar Biology resources:
0.0 / 5
0.0 / 5
0.0 / 5
2.5 / 5 based on 2 ratings
2.0 / 5 based on 1 rating
0.0 / 5
3.0 / 5 based on 1 rating
0.0 / 5
0.0 / 5
2.0 / 5 based on 1 rating
Comments
No comments have yet been made